Spike puller



Apr. 3, 1&23.

G. M. CLARK SPIKE FULLER Filed Feb. ll, 1922 3 sheets-sheet l $60. M. C70/Vf G. M. CLARK Apr. 3, 1923.

SPIKE FULLER Filed Feb. ll, 1922 3 sheets-sheet 5 Geo. M. /a/w @my y the invention vfurther includes. thefollowing.`

Patented Apr. i3, 1923.

, UNIT-rngarer-ss,

y 111,450,6ea-i,

y"enormen M ."CLARKQOE CHARLESTON, WEST vIRGINIaf SrIKE-PULLER.

Application filed February 11, 1.922,1' Seriai'No.',535,874. v

Toi-cuzZZy/wwm t mayoria-acera.; i y

Be it known that I, Gn'onGn'M; @Lamina "citizen of the UnitedStates, residing at.`

Charleston, inthe ,countyl VLof Kanawha and `State of Test Virginia, have invented new and useful Improvements in'iSpike vFullers7 of which the following isa specification' This invention relates to improvements. iny tools, an objectl being to :providea tool which is capableof use either asa as a lifting jack. f Y

spikefpuller or Another. object of theinvention is the pro-r.`

vision ofa tool of theabovestated character which is especially adapted for pulling rail'- road spikestand which maybe adjusted to rest upon vuneven surfaces andsupported in.

a vertical position or in an inclined position,- so that the toolrmay exertya direct pullupon a spike irrespective ofthe manner-in which ithas been driven; v l

-uern'other objectof the provision of-favspilre puller having a novelarrangement of gripping jaws, togetherv 'with'meansfor con#v veniently operatingy said jaws /to grip orA -re-,y lease..a"spike. z Vith the-above and lother objects-1n view,

novel featuresfand detail's'zof constructiomto be hereinafter -more fully' described, 1111151:

trated in the accompanying drawingsl and pointed out inthe appended claims.' 4 4 In the drawingsz't; f 1 Figure 1 is an elevationy of combined;

tion for'pullinga spike. s.

i y spike puller and lifting jack shown-in jgiosifk n Figure 2 an elevationvat'vright angles to` lFigure 1.

Figure 3 is an enlarged fragmentary sectional' view on the line Bie-3 ofFigure 1.

"Figure 11 is a transverse section on theline %4 of Figure 1.

Figure 5 is an enlarged fragmentarylfele-z vation showing thelowerlend of the .rack bar and the spike grippingfjaws carried thereby. 1, 1` l 1,v

Figure 6 is afragmentary elevation; of the upper end of the tool looking at the side opposite that shown in Figure 1.. Y, Figure 7 isa fragmentary `elevation of the lower end ofthe toolv showing the latter areranged `for"jiiulling a spike which has been: driven at an'inclination. i

FigureV 8 is asimilar' viewshowing the tool arranged for pulling'spikes-between a mainrailand a guardrail. v

. endof the housing by kabar 13, the latter opposite'y ends are@` connected lto the pins '25.

V 28 is provided witha seat 32 to permitof igurei`9 a detail viewof the'operating n i handle for the tool. r

f Referring in detail to the drawings, where-l in likeicharacters of reference denote corre? sponding parts,fthe invention is illustrated 6U as comprising a housingvwhich includes' spaced `side walls 10 Awhich yare vconnected along onenedgev by a'wall 11,-thev said walls j 10jbeing connected alongtheir opposite edges by'va'bar 12 vwhichis arranged at theupper connecting/extensions14 ofthe `walls-10 and providing brackets for a kpurpose hereinafter apparent'. iy j Extending downwardly `from oneside wall of the housingisa' rigid leg 15 which lcarries at lits lower end a foot 16, the'saidl foot'and .leg beingzcnnected by a web17-fto1p`rovide a n substantially Ushap'e'd "yoke 23.' yThis yoke' ,l

is slidingly vmounted upon lthe outerend of y the arm 19 and for this purpose'is provided atits opposite endsfwith slot's24 which en#y gage over'pinsQ; The dog 22 is kyieldingly i held in engagement with the teeth` 21' by y l f means of springs26, 'oneend'ofthese springs being connected tothe yoke 23while. their Extending fromthev lower end of the yoke 20isafoot27.` 'f n.

Slidable withinthe housing is a bar 28, which is provided along'o'neside'with spaced rigid teeth 29. Thisbarisguidedffor longitudinal-'movernent within the housing and 1004 for this'purpose is providedwith oppositely extending tongues 30 which slide in grooves f- 31. formed on the inside of the! side walls 10 Y ofthe housing. The upper'end. of .thei bar the 'useof 'tlietool of the lifting jack. n `The bar 28k is provided with a 'longitiidinalxpassage 33-and slidable longitudinally within this passage is a bar 34 which forms the shanlrof .a gripping `-jaw 35 which. is 110 rigid thereto. An extension 36 projects downwardly from the end of the bar 28 to.

i provide an increased guide surface for the shank 34. Pivotally secured to the jaw 85 as shown at 37 is a jaw 38. 'and this jaw and the jaw 85 are each provided with a bill 89 for engagement beneath the head of a spike as illustrated by the dotted lines in Figure vtion and accompanying drawings, that any upward movement of the bar 38y will .causev the bills 89 ofthe jaws and 88 to tightly engage and grip beneath the head of a spike or similar implement and that a continued pullingk actionwould serve to increase the gripping action, so that the spike would be positively held between the jaws during the operation of the tool. After a spike has n been pulled it will remain engagedbetween the aws until manually released, so that the invention is especially useful in pulling kspikes upon trestles or other elevated ystructures, whereby the loss of the spikes Awill be prevented. Extending from the 'upper end of. thev shank 34 is an operating handle 42, bymeans of which the said shank may be moved longitudinally either to open the jaws for engagement over the head of the spike preparatory to pulling, or to release the spike after the pulling operation. Normally this handle 42 is seatedwithin a notch 34 provided in the upper end yofthe bar 28.

Pivotally mounted' .upon the housing as shown at 44 ris a rectangular-yoke 45 and mounted in bearings provided in this yoke is a rock shaft 46.3 This rock shaft has secured thereon a dog 47, which may be termed the liftingv dog while Aextending from one end of the rock shaft 46 is a crank arm 48. Mounted in bearings provided in the brackets 14 is a rock shaft y49 which` has secured thereon a dog 50, which may be termed the holding dog in that it prevents retr( v-ede movement of the bar 28 after the release of the lifting dog 47. Extending from one end of the rock shaft 49 is a crankarm- 5l and `thiscrank arm lis connected' to the crank arm 48 by means .of a link or bar 52, the latter being in turn pivotally connected to the yoke 45 as shown -at53. The'connection between the bar 52 and thec'rank arm 48 includes a pin 54 which is slidable within a slot 55 provided in'the'bar 52 so'as to' permit of a sliding pivotal movement between the crank arm 48 and the bar. The yoke 45 is provided with an extension 56 which is received within the socketedend 57 of a bar 58, the opposite end of the said bar being provided with a tapered slotv 59 whose side edges are beveled to forma claw for engagement beneath the head of a spike. The bar 58 may thus be used as a spike puller. I

Vl/*hen itis desired to raise the bar 28, the handle 58 is operated to move the yoke 45 upon its pivot'44. The lifting dog will engage beneathv one of the teeth 29 of the bar 28 so as to elevate the latter, when the limit of upward movement is reached, the holding dog 50 will then engage beneath another ofthe teeth. `The dog 47 may then be released and moved downward for re-engagement.. By connecting 'the crank arms 48 and 51 ofthe dogs 47 and 2O respectively, the

said dogs may be simultaneously released so as to permit the bar 28 lto be quickly moved to proper position for engagement with a spike. By means ofthe pin and slot connection 54 and 55 between the crank arm 48 and bar 52, suiicient'independent movement between the dogs is provided to permit them to properly perform their function.

The invention is susceptible of various changes in its form, proportionsand minor details of construction and the right is herein reserved -to make such changes las properly fall within the scope of the appended claims.

Having described the `invention what is claimed is l. A tool of t-he class described comprising a` housing, means whereby the housing may be supported in vertical position, a rack bar movable in said housing, pivotally connected gripping jaws, a shank rigid with one of the aws and slidable longitudinally through the rack bar, a link having one end pivotally secured to the other jaw and its opposite end pivotally connected to the rack bar. and means whereby the rack bar may be operated. f

2. A tool of the class described comprising a housing, means vwhereby the housing may be supported in vertical position` a rack bar movable insaid housing, gripping jaws carried at the lower end ofthe rack* bar, a yoke surrounding the housing and pivotally mounted thereon, a lifting dog carried yby the yoke for engagement with the -teeth of the lrack bar, a holding dog mounted upon the housing, a link pivotally mounted upon the yoke and having one end pivotally connected to one of the dogs and means for -pivotally and slidingly connecting 'the opposite end of the link to the other dog to permit both simultaneous andindependent movement of the dogs.

3. A tool of the class described compris-A ing a housing, means whereby the housing may be supported in vertical position, a rack bar movable in lsaid housing, pivotally connected gripping jaws carried by one end of the rack bar, means including pivotally mounted dogs located at the opposite end of and engageable withr the rack bar for actuating said bar, means whereby one of said dogs'mayy be manually operated and v means connecting the manuallyA operated dog With the other dog, Whereby'said dogs may be simultaneously actuated to release the rack bar; y

4. A tool of the class described comprising a housing, a rack bar movable therein,

- means whereby thel rack bar may befoper.-

ated, gripping jaws carried by one `end of the rack bar, a rigid leg extending from` yone side of thefhousing,.a foot extending laterally from said leg, an arm extending `from the opposite sidek ofthe housing, a

bar vmovable through a. guide opening kprovided in the outer end of the arm and delining anadjustable leg and a spring actu? ateddogincluding a U-shaped guide mem-4 d teeth of the last mentioned raokbar to hold ;20 whereof I? a-Hix -my signav .n

" GEORGEM.,CCIKJVARK.k 

